My A/C blows hot air for a moment then blow cold few minutes and then hot again and cold, eventually blow hot.

Refilled freon, replaced refrigerant pressure sensor, replace auxiliary water pump still blow hot air.

OBDI scanner still said "9304 M13 heating water circulation pump open circuit".

Is there auxiliary water pump (heating water circulation pump) relay or fuse?

Please advice.

 

God Bless,

Comments

Profile picture for user Diddeo

Did you happen to ever figure out how to fix this issue?

I have a 2008 GL450 and have the same issue..

 

Thanks

Profile picture for user rockkang

No, I have not. but I took the car to shop for other reason and told them the AC issues and they checked and adjust the freon pressure.

Basically it was too much freon. after that it worked for a moment ( 2 hours) then went back to same as before.

I guess I have to go to the repair shop.

 

good luck.

 

Profile picture for user Diddeo

sorry i obviously didnt read your entire first post until now..

as i mentioned mine was just the wire connector.. maybe the wire is frayed or nicked?

Plain text

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type='1 A I'> <li> <dl> <dt> <dd> <h2 id='jump-*'> <h3 id> <h4 id> <h5 id> <h6 id>
  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
  • Only images hosted on this site may be used in <img> tags.
The content of this field is kept private and will not be shown publicly.

Fuse boxes

4
JLew
2 months 2 weeks ago
Mercedes » S-Class » 2000-2006

Problem with automatic start

5
abchris
1 month 1 week ago
Audi » A3 S3 RS3 » 2015-____

Output Speed Sensor for 2011 Nissan Rogue

2
eantongiorgi@yahoo.com
4 months 2 weeks ago
Nissan » Rogue » 2008-2014

2010 Mercedes ML350 BlueTec fuel leak (Left tank)

0
tarheel3759
1 month ago
Mercedes » M-Class » 2006-2011

check liquid level

0
equintquant2
1 month ago
Mercedes » C-Class » 2001-2007

Mercedes Benz clk w208 supercharger

0
timcolledge
1 month ago
Mercedes » CLK-Class » 1998-2003

Dodge. Journey 2015

1
TennesseeRebel
1 month ago
Dodge » Journey » 2009-____

Is it my ignition switch?

0
lcserna0423
1 month ago
Dodge » Caravan » 2008-____

2009 Mercedes e350 rwd 80 k miles

2
lucapuca
1 month 1 week ago
Mercedes

2006 chrysler crossfire convertible top problem

2
daisyblemmons
1 month 1 week ago
Chrysler » Crossfire

Mercedes ML350 bluetec sputter misfire

1
Nmerc
1 month 1 week ago
Mercedes » M-Class » 2012-____

Fuel issue

1
Andrew Williams.90
1 month 1 week ago
Buick » LeSabre » 2000-2005

Brake system

2
tammyduran
1 month 1 week ago
BMW » Z4 » 2003-2008

Best Shocks for Grand Cherokee

2
JohnSmith75
1 month 1 week ago
Jeep » Grand Cherokee

W212 AMG seat swap

1
GPone
1 month 1 week ago
Mercedes

do you need to register new battery on 2006 z4???

1
jdgallo
1 month 1 week ago
BMW » Z4 » 2003-2008

Mercedes CLA 250

4
jc71
1 month 1 week ago
Mercedes

CHANGING DASHBOARD LANGUAGE

2
Master
1 month 1 week ago
Volvo » S40, V40

2004 f150 wont start

1
dldiggs2
1 month 1 week ago
Ford » F-Series » 2004-2008

2006 chrysler crossfire convertible top problem

1
daisyblemmons
1 month 1 week ago
Chrysler » Crossfire » 2004-2007

User has not asked any questions.

Disclaimer: Youcanic has made every effort to assure the accuracy of the information on this page. Neither Youcanic nor its affiliates assume responsibility for any loss or damage due to any errors, omissions, lack of information. You agree to hold Youcanic free from any liability arising out of the use of any information contained within. All pictures and references to trademarks and car names are for reference only and do not imply an association with the manufacturer. Consult your owner's manual or authorized factory manuals when performing repair procedures. By entering this site, you agree to our Terms & Conditions and Privacy Polity.